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  <title>设定画线的宽度</title>
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  <div id="layout-content"><div id="function.imagesetthickness" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imagesetthickness</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.6, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imagesetthickness</span> &mdash; <span class="dc-title">设定画线的宽度</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.imagesetthickness-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imagesetthickness</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
   , <span class="methodparam"><span class="type">int</span> <code class="parameter">$thickness</code></span>
   ) : <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>imagesetthickness()</strong></span>
   把画矩形，多边形，椭圆等等时所用的线宽设为
   <code class="parameter">thickness</code> 个像素。成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数需要 GD 2.0.1 或更高版本(推荐 2.0.28 及更高版本)。</span></p></blockquote>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.imagesetthickness-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<code class="parameter">image</code></dt>

<dd>
<p class="para">由图象创建函数(例如<span class="function"><a href="imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span>)返回的图象资源。</p></dd>

    
     <dt>
<code class="parameter">thickness</code></dt>

     <dd>

      <p class="para">
       Thickness, in pixels.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.imagesetthickness-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>

 <div class="refsect1 examples" id="refsect1-function.imagesetthickness-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3738">
    <p><strong>Example #1 <span class="function"><strong>imagesetthickness()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">//&nbsp;Create&nbsp;a&nbsp;200x100&nbsp;image<br /></span><span style="color: #0000BB">$im&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">200</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">100</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$white&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0xFF</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0xFF</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0xFF</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$black&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0x00</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0x00</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0x00</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Set&nbsp;the&nbsp;background&nbsp;to&nbsp;be&nbsp;white<br /></span><span style="color: #0000BB">imagefilledrectangle</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">299</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">99</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$white</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Set&nbsp;the&nbsp;line&nbsp;thickness&nbsp;to&nbsp;5<br /></span><span style="color: #0000BB">imagesetthickness</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">5</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Draw&nbsp;the&nbsp;rectangle<br /></span><span style="color: #0000BB">imagerectangle</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">14</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">14</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">185</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">85</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$black</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Output&nbsp;image&nbsp;to&nbsp;the&nbsp;browser<br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">'Content-Type:&nbsp;image/png'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">imagepng</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="mediaobject">
     
     <div class="imageobject">
      <img src="images/21009b70229598c6a80eef8b45bf282b-imagesetthickness.png" alt="Output of example : imagesetthickness()" width="200" height="100" />
     </div>
    </div>
   </div>
  </p>
 </div>

 <div class="refsect1 notes" id="refsect1-function.imagesetthickness-notes">
  <h3 class="title">注释</h3>
  <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数需要 GD 2.0.1 或更高版本(推荐 2.0.28 及更高版本)。</span></p></blockquote>
 </div>

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